I want to expand an existing eclipse editor.
To do this, I have followed below site

www.vogella.com/articles/EclipseEditors/article.html : simple editor example
www.vogella.com/articles/EclipsePlugIn/article.html : simple plugin example
I could do well both example and I thought I have to combine those example to do what I want. so I made some combined example with the template: plug-in with a view.
but I couldn't see the custom editor in original eclipse editor.

I am not sure how to attach the custom editor to the original eclipse editor
I couldn't find an example or tutorial for this until now.
there was an example for creating simple editor. but I want to extend the original eclipse editor.

The attached screenshot is what I want. not in java perspective. it's going to be in a different named perspective.